The result can be easily viewed crosseyed and it is possible to rotate this view with the standard controls of the left plot. Using the right plot to change the camera position doesn't work as expected.

@Pato I wanted to be able to use either gr // stereo3D or gr // stereo3D[(*options*)]. To do this I convert an explicit appearance of the first form into the second; it is equivalent to gr // stereo3D[]. In all of these examples x // f is equivalent to f[x], but to me more logical for a post-processing function.
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Mr.Wizard♦Aug 7 '13 at 13:43

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May I remark that rotating the scene is not entirely equivalent to a translation of the viewpoints?
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Sjoerd C. de VriesAug 7 '13 at 21:23

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@stefan I have no problem with focussing on the center of the object (note the phrase "not entirely" in my remark), and I agree that this may be done by rotating the scene, but it doesn't take into account that some parts of the scene are closer to one eye than the other and therefore have a different projection. Imagine a small stick of 1 cm height placed vertically 6.5 cm in front of your right eye (which is 6.5 cm to the right of your left eye). The stick subtends atan(1/6.5) rads of visual angle in the right eye, but subtends only atan(1/(sqr(2)6.5)) in the left eye, a whole lot less.
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Sjoerd C. de VriesAug 8 '13 at 14:07

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